Integers in Real - Life.

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Integers & Life Integers are used to represent many everyday situations. Weather above zero + below zero - Business earnings + debts - Sea Level.

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Presentation transcript:

Integers in Real - Life

Budgets and Money Application The positive numbers represent income while the negative numbers represent debt. Maggie owes the candy store $35. Each of 5 friends will help her pay off her debt. How much will each friend pay?

Budgeting your Money You are a high school graduate who lives at home and works at McDonald's making $5.50/hr. You work 40 hrs. a week and bring home about $165/wk and $660/month after taxes. Your expenses are rent:$150 car payment:$125 car insurance: $75 clothes:$105, food:$70 cell phone:$50 going-out (movies, etc.):$100 misc.(gas,etc.):$55. Calculate your expenses and determine whether or not you make enough to afford your life style.

Money Solve the following problem using integers. Jenny has $2. She earns $5, spends $10, earns $4, then spends $3. How many dollars does she have or owe?

History Application BC years are like negative numbers and AD are like positive numbers.

History 1) The Punic Wars began in 264 B.C. and ended in 146 B.C. How long did the Punic Wars last? 2) Roman Civilization began in 509 B.C. and ended in 476 A.D. How long did Roman Civilization last?

Champions Tour Q-School The Game of Golf The game of golf is different in that the lower the integer, the better the score. The integer represents the number of strokes below par for the golfer. What is the team score for these golfers after a match? Champions Tour Q-School Name Score Peter Senior -17 Joe Ozaki -14 Steve Haskins Ronnie Black Jim Roy -12

Football The number of yards towards your goal represents a positive integer and the number of yards away from your goal represents a negative integer. Five times in the same game, Picksburg’s running back was stopped for a loss of 2 yards. How many yards rushing did he have?

Temperature & Weather Thermometers are really number lines that stand upright. The numbers can be thought of as temperature changes. Positive numbers make the temperature indicator rise. Negative numbers make the temperature indicator fall.

Weather Problem In Buffalo, New York, the temperature was -14°F in the morning. If the temperature dropped 7°F, what is the temperature now?

Weather In the Sahara Desert one day it was 136°F. In the Gobi Desert a temperature of -50°F was recorded. What is the difference between these two temperatures?

Temperature Metal mercury at room temperature is a liquid. Its melting point is -39°C. The freezing point of nitrogen is -114°C. How much warmer is the melting point of mercury than the freezing point of nitrogen?

Sea Level Application The number of feet above sea level is a positive number and the number of feet below sea level is a negative number. Mt. Everest, the highest elevation, is 29,028 feet above sea level. The Dead Sea, the lowest elevation, is 1,312 feet below sea level. What is the difference between these two elevations?

Sea Level A submarine was situated 800 feet below sea level. If it ascends 250 feet, what is its new position? A submarine was situated 450 feet below sea level. If it descends 300 feet, what is its new position?